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Flower Fruits & Seed
Abeka Biology Chp 3
Question | Answer |
---|---|
Sepals | The leaf like structures attached to the edge of the receptacle. |
petals | The most conspicuous part of the flower. |
corolla | Name when the petals are collected together. Some petals can be fused together to form 1 trumpet like structure. |
stamen | Organs within the corolla that produce pollen. |
filament | A slender, elongated stalk. |
anther | Is the enlarged structure at the tip of the filament that produces pollen. |
pollen | Tiny grains that consist of male reproductive cells with its own definite shape and size. |
What is the purpose for Sepals? | To enclose & protect the flower's petals. |
How do petals play an important role in pollination? | They attract insects with their showy colors & sweet nectar. |
Name 2 parts of Stamen. | Filament & anther. |
Pollen contains what reproductive cells? | Male reproductive cells called sperm. |
Pistil | The elongated, vase shaped structure of a flower. |
Name the 3 parts of the Pistil. | Stigma, style, and ovary. |
Ovary | Swollen section located at the base of pistil. Holds the Ovules. |
Ovules | Future seeds which contain the female reproductive cells known as egg cells. When fertilized, they develop into seeds. |
Stigma | Top of pistil that is sticky and receives the pollen grains at pollination. |
style | The stalklike structure that connects the ovary to the tip of the pistil. |
bracts | Special leaves that appear to be its petals. |
inflorescences | Plants that bear their flowers in clusters. |
photoperiodism | Phenomenon where plants require a definite period of light and dark before they will produce flowers. |
fruit | When ovary is fully ripened. |
pollination | A process when pollen reaches the pistil to fuse with the ovules in the ovary. |
hybrid | Cross-pollination between plants belonging to different species of the same plant. |
nectar | A sweet tasting, watery liquid produced by plants. |
fertilization | When ovules begin developing into seeds due to the sperm cell fusing with the egg cell. |
sexual reproduction | The type of reproduction which sperm & egg unite. |
legume | Simple fruit that consist of a pod enclosing several seeds. |
bran | In wheat, a shell-like fruit covering. |
chaff | Outer most layer of wheat. Covers the bran. |
germination | Sprouting of a seed. |
dormancy | When a plant stops growing for a period of time.. |
ednosperm | Makes up 85% of wheat kernel and is the part used in making white flour. |
Primary purpose of flowers to a plant? | To produce seeds for reproduction. |
Another name for a flower stalk? | Pedicel |
Chief factor affecting when most plants flower. | The length of daylight and night. |
Eight groups of simple fruits. | Berries, drupes, pomes, legumes, samaras, nuts, grains, achenes |
Five important cereal grains | Barley, oats, rye, corn, rice |
Four parts of a wheat kernel | Husk, bran, endosperm, germ |
Three main parts of a seed | embryo plant, endosperm, & seed coat |
Three parts of embryo | Plumule, radicle, cotyledon(s) |
Five factors that favor seed germination | the amount of moisture available, amount of oxygen available, temperature, soil conditions, amount of sunlight available. |